Palynomorphs of the Lower Tournaisian in the cores of Brevillers, (Pas-de-Calais, France). (In: Colloqium on the Stratigraphy of the Carboniferous, Compte Rendus, 8th Reunion CIMP. M.Streel and R.H.Wagner, editors)
Foreign title:
Microfossiles Vegetaux du Tournaisien Inferieur dans le "Core-Drill" de Brevillers (Pas-De-Calais, France).